What type of hose can I use for brake fluid?

What type of hose can I use for brake fluid?

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Discussion

KingNothing

Original Poster:

3,172 posts

154 months

Tuesday 30th October 2012
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I'm going to overhaul the brakes on my motorbike, on the rear brake theres a pipe which feeds the brake fluid by gravity to the rear master cylinder, the pipe is just compression clipped at either end, and looks to be made of regular black rubber. I'm wanting to change this when I overhaul them, to maybe something transparent, or a blue colour to match the paint scheme of the bike.

I was wondering, if something along the lines of a polyurethene or PVC type clear hose, or a sillicone rubber based hose would be ok to run with brake fluid, or would the type of material the hose is made out of and the brake fluid react with each other and cause degradation to the hose?

I don't think the hose ever gets under any great pressure as it's before the master cylinder and like I said just looks to be a gravity feed from the reservoir.

Cheers

Pothole

34,367 posts

283 months

Tuesday 30th October 2012
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How much is the correct part online?

TheEnd

15,370 posts

189 months

Tuesday 30th October 2012
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I know fluid can react with some plastics as I've seen the old bleeding take off hoses mutate after a while.
Some sort of offcut of a proper brake line? Teflon lined is the stuff I think, but double check that.

KingNothing

Original Poster:

3,172 posts

154 months

Wednesday 31st October 2012
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Pothole said:
How much is the correct part online?
About £18, there's nothing wrong with the hose that's currently on, and when I modify it, and put on the new alloy reservoir I have there's nothing to stop me using it, was just after something a bit more aesthetically pleasing, and wondering what the options are as I know brake fluid doesn't really like paint, so just wasn't sure if there were certain types of rubbers or plastics it didn't react to, too well to either.

Pothole

34,367 posts

283 months

Wednesday 31st October 2012
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KingNothing said:
Pothole said:
How much is the correct part online?
About £18, there's nothing wrong with the hose that's currently on, and when I modify it, and put on the new alloy reservoir I have there's nothing to stop me using it, was just after something a bit more aesthetically pleasing, and wondering what the options are as I know brake fluid doesn't really like paint, so just wasn't sure if there were certain types of rubbers or plastics it didn't react to, too well to either.
There look to be loads of Teflon lined brake hoses for about that price or less available. Get one of them and cut to size? (you'll be left with some spare banjos etc.)

TheEnd

15,370 posts

189 months

Wednesday 31st October 2012
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You could have a duel afterwards!

Pothole

34,367 posts

283 months

Wednesday 31st October 2012
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TheEnd said:
You could have a duel afterwards!
oh dear. biglaugh

Mr2Mike

20,143 posts

256 months

Wednesday 31st October 2012
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Pothole said:
There look to be loads of Teflon lined brake hoses for about that price or less available. Get one of them and cut to size? (you'll be left with some spare banjos etc.)
Teflon lined aero-quip style hoses are completely unsuitable for attaching the reservoir to the master cylinder if it uses simple push on fittings with hose clips. This system relies on the stretchiness of a rubber pipe for sealing, and for fitting the thing in the first place.

The type of hose need for this job is commonly called "Tygon", but to be honest this sort of bling usually ends up an eyesore rather than making anything look better.

Pothole

34,367 posts

283 months

Wednesday 31st October 2012
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Mr2Mike said:
Pothole said:
There look to be loads of Teflon lined brake hoses for about that price or less available. Get one of them and cut to size? (you'll be left with some spare banjos etc.)
Teflon lined aero-quip style hoses are completely unsuitable for attaching the reservoir to the master cylinder if it uses simple push on fittings with hose clips. This system relies on the stretchiness of a rubber pipe for sealing, and for fitting the thing in the first place.

The type of hose need for this job is commonly called "Tygon", but to be honest this sort of bling usually ends up an eyesore rather than making anything look better.
I stand corrected. Excellent info.

PaulKemp

979 posts

146 months

Saturday 3rd November 2012
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Use the correct hose then slip over a coloured hose or some overbraid
Then some of those dummy hose lock fittings